Japanese Beetle

i-1 Thirty-five years ago, trash and wild shrubs were burned along roadsides to limit the number of Japanese beetles that could become attached to passing vehicles.
Today, Japanese beetles can be controlled by applying a DDT spray to infested areas. Using DDT sprays (or dusts) not only protects crops and ornamentals from beetle feeding, but also retards the spread of the insect into uninfested areas. These men, working near an airport, are spraying DDT on cost plants to prevent the beetles from entering nearby airplanes, and thus be transported to new localities. i-2
i-3 Another method of retarding the spread of Japanese beetles from infested to uninfested areas is to fumigate freight cars that may be carrying the insects as hitch-hikers. Methyl bromide gas is being released into a car containing fruits and vegetables. From 1940-1950, about 5,000 freight-car loads a year were fumigated for Japanese beetle.
Milky disease of Japanese beetle grubs, first discovered by entomologist about 1933, has caused a marked reduction in the beetle population where it has been widely used. Bacterial spores of milky disease attack the grubs underground and work their way into the blood, causing the death of the grub. Milky disease spore dust is available commercially and can be applied with an ordinary hand corn planter, as shown above. i-4


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